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Thyra_LinearOpScalarProd_def.hpp
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00001 // @HEADER
00002 // ***********************************************************************
00003 // 
00004 //    Thyra: Interfaces and Support for Abstract Numerical Algorithms
00005 //                 Copyright (2004) Sandia Corporation
00006 // 
00007 // Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
00008 // license for use of this work by or on behalf of the U.S. Government.
00009 // 
00010 // This library is free software; you can redistribute it and/or modify
00011 // it under the terms of the GNU Lesser General Public License as
00012 // published by the Free Software Foundation; either version 2.1 of the
00013 // License, or (at your option) any later version.
00014 //  
00015 // This library is distributed in the hope that it will be useful, but
00016 // WITHOUT ANY WARRANTY; without even the implied warranty of
00017 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00018 // Lesser General Public License for more details.
00019 //  
00020 // You should have received a copy of the GNU Lesser General Public
00021 // License along with this library; if not, write to the Free Software
00022 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
00023 // USA
00024 // Questions? Contact Michael A. Heroux (maherou@sandia.gov) 
00025 // 
00026 // ***********************************************************************
00027 // @HEADER
00028 
00029 #ifndef THYRA_LINEAR_OP_SCALAR_PROD_DEF_HPP
00030 #define THYRA_LINEAR_OP_SCALAR_PROD_DEF_HPP
00031 
00032 #include "Thyra_LinearOpScalarProd_decl.hpp"
00033 #include "Thyra_ScalarProdBase.hpp"
00034 #include "Thyra_LinearOpBase.hpp"
00035 #include "Thyra_MultiVectorStdOps.hpp"
00036 #include "Thyra_MultiVectorBase.hpp"
00037 #include "Thyra_VectorSpaceBase.hpp"
00038 
00039 
00040 namespace Thyra {
00041 
00042 
00043 // Constructors, initializers, accessors
00044 
00045 
00046 template<class Scalar>
00047 LinearOpScalarProd<Scalar>::LinearOpScalarProd()
00048 {}
00049 
00050 
00051 template<class Scalar>
00052 LinearOpScalarProd<Scalar>::LinearOpScalarProd(
00053   const Teuchos::RCP<const LinearOpBase<Scalar> > &op_in )
00054 {
00055   this->initialize(op_in);
00056 }
00057 
00058 
00059 template<class Scalar>
00060 void LinearOpScalarProd<Scalar>::initialize(
00061   const Teuchos::RCP<const LinearOpBase<Scalar> > &op_in
00062   )
00063 {
00064 #ifdef TEUCHOS_DEBUG
00065   TEST_FOR_EXCEPT(is_null(op_in));
00066 #endif
00067   op_ = op_in;
00068 }
00069 
00070 
00071 template<class Scalar>
00072 void LinearOpScalarProd<Scalar>::uninitialize(
00073   const Ptr<RCP<const LinearOpBase<Scalar> > > &op_out
00074   )
00075 {
00076   if (!is_null(op_out)) *op_out = op_;
00077   op_ = Teuchos::null;
00078 }
00079 
00080 
00081 // Overridden from ScalarProdBase
00082 
00083 
00084 template<class Scalar>
00085 bool LinearOpScalarProd<Scalar>::isEuclideanImpl() const
00086 {
00087   return false;
00088 }
00089 
00090 
00091 template<class Scalar>
00092 void LinearOpScalarProd<Scalar>::scalarProdsImpl(
00093   const MultiVectorBase<Scalar>& X, const MultiVectorBase<Scalar>& Y,
00094   const ArrayView<Scalar> &scalarProds_out
00095   ) const
00096 {
00097   Teuchos::RCP<MultiVectorBase<Scalar> >
00098     T = createMembers(Y.range() ,Y.domain()->dim());
00099   Thyra::apply(*op_, NOTRANS,Y, T.ptr());
00100   dots(X, *T, scalarProds_out);
00101 }
00102 
00103 
00104 template<class Scalar>
00105 RCP<const LinearOpBase<Scalar> >
00106 LinearOpScalarProd<Scalar>::getLinearOpImpl() const
00107 {
00108   return op_;
00109 }
00110 
00111 
00112 } // end namespace Thyra
00113 
00114 
00115 #endif  // THYRA_LINEAR_OP_SCALAR_PROD_DEF_HPP
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